| Forum Home | ||||
| Press F1 | ||||
| Thread ID: 76847 | 2007-02-18 01:37:00 | Mirrored drives | Greven (91) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 525466 | 2007-02-18 01:37:00 | Is there a reason why RAID controllers can't read from mirrored drives as if they were striped in order to improve read performance? | Greven (91) | ||
| 525467 | 2007-02-18 01:58:00 | The RAID system was intended to improve reliability, not speed . Mirroring was invented first . . . and might not really "be" RAID . It might be possible to do it on a track by track basis, but there are difficulties (e . g . bad tracks mapped out in the factory for IDE cause long head movements) . But any improvement would only be in reading, and probably no-one has thought it worth the effort . Track buffering in the drive controllers is probably considered good enough . Of course everyone wants data available before the computer requests it . . . you might have to wait for transluminal speed computers . |
Graham L (2) | ||
| 525468 | 2007-02-18 05:36:00 | Is there a reason why RAID controllers can't read from mirrored drives as if they were striped in order to improve read performance? RAID 0+1 maybe? |
Pete O'Neil (6584) | ||
| 1 | |||||